Re: New here/questions about husband/MS/ON etc
I think that it is a good idea for him to see a doctor (preferable the same one) every time he gets an attack or something that ressembles an attack. (My neuro tells me to report anything abnormal that lasts long than 5 days) There might be nothing the doctors can do, however, they can note the symptoms in his record and that can eventually help to make a clearer diagnosis.
About the steroid injections, they help lessen symptoms and make the attack fade faster, but if you use them often, they can have long term side affects, which is why doctors hesitate to prescribe them.
MS drugs are something completely different. They are taken continuously and help prevent other attacks and developpement of the disease.
As for whether or not your husband has MS, you need more symptoms before a diagnosis can be made. Living in the "what ifs" is terrible (we've all been there), but sometimes it takes a long time before enough proof can be gathered to make a diagnosis. The best thing to do is take it one day at a time and deal with the problems as they happen. If having MS has taught me anything, it's be prepared, but don't stop living either.
Best of luck to you and your husband!